Lesson 8 Supporting Pipe and Installing Water Supply Piping and Fixtures Exam
| Question 1 | 5 / 5 points |
How high above the floor should ledge-type lavatories be above the floor?
Question options:
| 25 inches | |||
| 30 inches | |||
| 35 inches | |||
| 40 inches | |||
| Question 2 | 5 / 5 points | ||
What is the minimum water head needed when water testing DWV piping?
Question options:
| 5 feet | |||
| 10 feet | |||
| 15 feet | |||
| 20 feet | |||
| Question 3 | 5 / 5 points | ||
Based on how they’re supported, how many types of lavatories are there?
Question options:
| 2 | |||
| 3 | |||
| 4 | |||
| 5 | |||
| Question 4 | 5 / 5 points | ||
What is the minimum length of a run of PVC pipe that should have an expansion loop?
Question options:
| 30 feet | |||
| 40 feet | |||
| 50 feet | |||
| 60 feet | |||
| Question 5 | 5 / 5 points | ||
When facing a fixture, where is the cold-water stub-out in relation to the hot-water stub-out?
Question options:
| Above | |||
| Below | |||
| To the left | |||
| To the right | |||
| Question 6 | 0 / 5 points | ||
How many connections are made to tub/shower valves?
Question options:
| 1 | |||
| 2 | |||
| 3 | |||
| 4 | |||
| Question 7 | 5 / 5 points | ||
If the temperature rises 10 degrees, how much will a 100 foot-long piece of PVC pipe expand?
Question options:
| 1.08 inches | |||
| 1.8 inches | |||
| 2 inches | |||
| 2.08 inches | |||
| Question 8 | 5 / 5 points | ||
What type of anchor is best to use if the object being anchored may need to be moved?
Question options:
| Sleeve | |||
| Insert | |||
| Drop-in | |||
| Stud | |||
| Question 9 | 5 / 5 points | ||
What should be used to tighten plated pipe?
Question options:
| Hands | |||
| Monkey wrench | |||
| Pipe wrench | |||
| Strap wrench | |||
| Question 10 | 5 / 5 points | ||
What size water supply tubing is used for icemakers?
Question options:
| 1/4 inch | |||
| 1/2 inch | |||
| 3/4 inch | |||
| 1 inch | |||
| Question 11 | 5 / 5 points | ||
In a vertical run of PEX, how far apart should supports be?
Question options:
| 2 feet | |||
| 3 feet | |||
| 4 feet | |||
| 5 feet | |||
| Question 12 | 5 / 5 points | ||
What is used to support the weight of vertical DWV pipe?
Question options:
| Riser clamp | |||
| Pipe bracket | |||
| Pipe clamp | |||
| Beam clamp | |||
| Question 13 | 5 / 5 points | ||
What is the maximum length of flexible water supply tubing for a typical water closet installation?
Question options:
| 5 inches | |||
| 10 inches | |||
| 15 inches | |||
| 20 inches | |||
| Question 14 | 5 / 5 points | ||
What is the minimum size for air chambers installed with hot-water piping?
Question options:
| 4 inches | |||
| 8 inches | |||
| 12 inches | |||
| 16 inches | |||
| Question 15 | 5 / 5 points | ||
Which type of anchor is permanently attached to the concrete or masonry after being installed?
Question options:
| Plastic | |||
| Self-tapping | |||
| Sleeve | |||
| Caulking | |||
| Question 16 | 5 / 5 points | ||
What is the diameter for a tailpiece and P-trap assembly for a sink?
Question options:
| 1 inch | |||
| 1 ¼ inches | |||
| 1 ½ inches | |||
| 1 ¾ inches | |||
| Question 17 | 5 / 5 points | ||
What is the maximum flow rate for a modern water closet per flush cycle?
Question options:
| 1 gallon | |||
| 1.6 gallons | |||
| 2.2 gallons | |||
| 2.5 gallons | |||
| Question 18 | 5 / 5 points | ||
What type of countertop typically does not come with a hole for a sink?
Question options:
| Plastic/particleboard | |||
| Solid plastic | |||
| Granite | |||
| Marble | |||
| Question 19 | 5 / 5 points | ||
Which of the following anchors typically requires the smallest hole?
Question options:
| Caulking | |||
| Plastic | |||
| Toggle bolt | |||
| Lag shield | |||
| Question 20 | 5 / 5 points | ||
How high above the floor are tub/shower valves installed?
Question options:
| 30 inches | |
| 36 inches | |
| 42 inches | |
| 48 inches |
Which type of anchor can be used to produce its own hole?
Question 1 options:
| Full-thread sleeve | |
| Insert | |
| Self-drilling | |
| Stud |
What is the maximum horizontal distance you can place supports for a horizontal run of inch and one-half copper pipe?
Question 2 options:
| 8 feet | |
| 10 feet | |
| 12 feet | |
| 15 feet |
Where are water hammer arrestors needed?
Question 9 options:
| Near quick-closing valves | |
| Near lavatories | |
| Near faucets | |
| Near stop and waste valves |
What is used to make the joint between a water closet and floor watertight?
Question 11 options:
| A seal | |
| Caulking | |
| A flange | |
| A washer |
When air testing water supply piping, how much pressure should be used relative to the pressure at the main?
Question options:
| 30% greater | |
| 40% greater | |
| 50% greater | |
| 60% greater |
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